The Hawaiian volcanic chain is a series of shield cones, and they are common in Iceland, as well.

It is the oldest and most remote volcanic rock in the Hawaiian chain.

In addition, the threat of swells caused high surf warnings to be posted for the entire Hawaiian chain.

In effect, the 1,600-mile-long Hawaiian chain is an island production line.

Explaining the Hawaiian chain has been a triumph of modern geology.

"But the waters surrounding the Hawaiian chain are generally in the 70's, so storms usually weaken when they get close to the islands."

The state of Hawaii counts 137 "islands" in the Hawaiian chain.

This place is somewhere in the Hawaiian chain, we figure, only real north of the state, up toward Midway.

Even Kauai in the Hawaiian chain - that's confirmed now.

The islands of the Hawaiian chain are the tops of great mountains that rise as much as 29,000 feet from the sea floor.